Spatiotemporal multicast in sensor networks

Sensor networks often involve the monitoring of mobile phenomena. We believe this task can be facilitated by a spatiotemporal multicast protocol which we call “mobicast”. Mobicast is a novel spatiotemporal multicast protocol that distributes a message to nodes in a delivery zone that evolves over time in some predictable manner. A key advantage of mobicast lies in its ability to provide reliable and just-intime message delivery to mobile delivery zones on top of a random network topology. Mobicast can in theory achieve good spatiotemporal delivery guarantees by limiting communication to a mobile forwarding zone whose size is determined by the global worst-case value associated with a compactness metric defined over the geometry of the network (under a reasonable set of assumptions). In this work, we first studied the compactness properties of sensor networks with uniform distribution. The results of this study motivate three approaches for improving the efficiency of spatiotempo...

• Type: Conference
• Year: 2003
• Where: SENSYS
• Authors: Qingfeng Huang, Chenyang Lu, Gruia-Catalin Roman
• Keywords: Delivery Guarantee, Sensor Networks, SENSYS 2003, Spatiotemporal Multicast, Spatiotemporal Multicast Protocols